A Democratic bill unveiled this week would allow former convicted felons released from prison to vote in federal elections.
The measure would create a uniform federal standard applicable to ex-felons who are no longer in prison. It would not apply to state elections.
Nearly six million Americans cannot vote because of a felony conviction.
"Just as poll taxes and literacy tests prevented an entire class of citizens, namely African Americans, from integrating into society after centuries of slavery, ex-offender disenfranchisement laws prevent people from reintegrating into society after they have paid their debt by serving time in prison," Conyers said in a statement.
Sen. Ben CardinBen CardinAide: Trump invited Philippine leader to WH Dem senator: Hold hearing on Russian interference in election Overnight Finance: Questions swirl around Trump's plan for his business | Treasury pick promises major tax cut | White House downplays Carrier deal MORE (D-Md.), who sponsored the Senate version of the bill, said the proposal would reduce confusion from varying state laws allowing ex-felons to participate in federal elections.
"State disenfranchisement laws deny citizens participation in our democracy and the patchwork of laws leads to an unfair disparity and unequal participation in federal elections based solely on where an individual lives, in addition to the racial disparities inherent in our judicial system," Cardin said.